Hello! This is my coop. I know it's really little, but it was a gift. It was built to house two chickens, but the woman we bought our birds from recommended we get three. They're big ladies and they do get time to run around outside, and we plan on building a bigger coop next year when we move. For now though, this is what we have to work with. We live in central VA, so our winters aren't New England cold, but they do get cold. This week it's gotten down in the 30's and we had frost on the grass this morning. Should I do anything to prep my coop for colder weather? Add a door to close at night? With such a small enclosed space I worry about the balance between adequate ventilation and avoiding drafts. There is a window that can slide open, but again I worry about drafts. I do try to clean up the poop everyday, so I don't think there's much of an ammonia build up. Should I cover the outside with plastic? At what temperatures should I be concerned? These are our first chickens so any suggestions are much appreciated!